Question

You lift a box weighing 30 N a distance of 0.5 m. Calculate the work done on the box.

15 J

0 J

0.017 J

60 J

Answer 1

Answer: 15 J

Step-by-step explanation:

The work done in lifting the box is equal to the gain in gravitational potential energy of the box, equal to

`W=Fd`

where

F=30 N is weight of the box

d=0.5 m is the distance through which the box has been lifted

By substituting the numbers into the equation, we find

`W=(30 N)(0.5 m)=15 J`